/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.dialect.db2.parser;

import java.util.HashMap;
import java.util.Map;
import studio.raptor.sqlparser.parser.Keywords;
import studio.raptor.sqlparser.parser.Lexer;
import studio.raptor.sqlparser.parser.Token;


public class DB2Lexer extends Lexer {

  public final static Keywords DEFAULT_DB2_KEYWORDS;

  static {
    Map<String, Token> map = new HashMap<String, Token>();

    map.putAll(Keywords.DEFAULT_KEYWORDS.getKeywords());

    map.put("FETCH", Token.FETCH);
    map.put("FIRST", Token.FIRST);
    map.put("ONLY", Token.ONLY);
    map.put("OPTIMIZE", Token.OPTIMIZE);
    map.put("OF", Token.OF);
    map.put("CONCAT", Token.CONCAT);
    map.put("CONTINUE", Token.CONTINUE);
    map.put("IDENTITY", Token.IDENTITY);
    map.put("MERGE", Token.MERGE);
    map.put("USING", Token.USING);
    map.put("MATCHED", Token.MATCHED);

    DEFAULT_DB2_KEYWORDS = new Keywords(map);
  }

  public DB2Lexer(String input) {
    super(input);
    super.keywods = DEFAULT_DB2_KEYWORDS;
  }
}
